Lateral-motion roller-bearing for cars.



L. W. BARBER L E. W. WEBB. LATBRAL MOTION ROLLER BEARING POR CARS.

APPLICATION FILED NOV. 4, 1912.

Patented Mar. 17, 1914.

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`in the art to which it appertains to make of a curif'ed track are raised higher than the ".lhis result initiieren .aras

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LEE lW. BARBER AND .EDWIN W. VVIIB'B, OF CHICAGO. ILLINOIS, .ASSIGNORES TO ."lfilND- ARI) CAIR/.TRUCK COMPANY, OF Cl'ICACtO, ILLINOIS. A CORPORATION OF NEW JERSEY.

LATERAL-MOTION ROLLER-BEARING FOR CARS.

Specification of Letters Patent.

lytlltllttlhgttifh Application tiled November d, 1912.

Patented atar. V', Serial No. 729,276.

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a 'lragn'icntary view. partly in diagram and partly in section. taken transversely ot the car, and showing the lateral-niotion roller hearings which work on the opposite sides To att iti/1.0m 'it moji/ concerns:

Be it known that we, Lne W.' Banana and .lnwiN iV. lVnnr.. citizens ol the l'lnited States. residing at Chicago, in the county ot Cook and State of Illinois. have invented ot the ear; Fig. 9 is an enlarged view. partly certain new and uselul linpriwen'ients in shown in the lel't hand hall oll Fig. l; :ind Lateral-Motion Roller-Bearings lor Cars, l* ig. 3 is a plan view with some parts broken and we do hereby declare the following to be a full, clear, and exact description ot the invention, such as will enable others skilled away. showing the lower bearingr platiI and one ol the rollers ol one ot' the roller-bearing` devices. I

Referring to the drawings. the numeral 'l indicates the upper and the numeral the lower rolleibeariiit,i plates ol. the lateralmotion roller-bearin,gr device. 'lhe said upper bearing: plates l iiiust be. assumed to more laterally with the car body. while the lower bearing plates 2 iniist be assuinei'l to move laterally will] the flanges ot the ear and use the saine. i

)ur present invention relates .to rollerhearingy lateral-motion devices tor cars, and is in the nature ot an improvement on or modification oil the lateral-motion device disclosed and claimed in Letters Patent Number 7811.096. granted to L, W'. .Barber of date llf'larcli 7,1905. Thisinvention so moditruck. The conneetions between the said ties the construction ot tl i said prior patbearing plates and the parts will which they more latei'all ditl'erent ways, and -tor the purposes ot this case, it may as woll be assumed that thev are connected snbstantially as `shown in the prior Barber patent. above identified. For important reasons. fully set 'forth in thc Said prior Barber patent. the roller-bearingr plates were formed with i'liverg'ent llat roller engaging or hearingr surfaces. land this invention involves this t'eature in a modified and novel arrangement.

llhe numeral 3 indicates the ers which are interposed between the upper and lower hearing' plates l and Q. lor engagenient with the said rollers. the lower bearing plates 2 are 4t'orined with llat diverging roller-hearing' surfaces fl and and with an intermediate cylindrical or curved surface (i. with which the llatbearing sur- 'laccs 4 and 5 join tangentially. The radius t3 ot.' thc curve ot the ,jlindrieal ,sui-tace l is slightly `renter than the radius of the cooperating' roller (see i'iiirticularly Fig. 2). The inwardly extended llat bearingY sur face 4 rises inwardly but very sliglitly l'roin `a horizontal directionwhile the outer flat bearing,r surlace 5 has a very inueli ,fri-eater rise in an outward direction` llie end portions ot' the llat bearing surfaces `t and join langentially with the curved suriaife 7*" ent that one side ot' the ear will be raised more than the other when the ear body is4 moved laterally in respect to the trucks in rounding curves, in the track. y

It is a well known fact that the outer rails inner rails of the curve. so as to offset een tri'tng'al force in the train and which7 nuclei' high train speeds. exerts great force, tending to throw the body oit the ear outward and to thrust the tlanges of the wheels against the rails. This invention provides in the lateral-motion roller-bearings them-v selves means whieh will further offset this action of centrifugal torce, and thus fur* ther reduce the torce under which the body of the car will be thrown outward in travelinfg the curve at high speed and reduce also vthe tendency of a car body to topple over in traveling' a curve at `very high speed. accomplished in the roller bearings by so constructing and arrangingr the saine that when the car body moves laterally outward in traveling the curve, the roller-bearings'on the outer side of the ear will raise that side of the car, while the roller bearings on the inner side of the car` will raise the inner side of the. ear very little if any.

In the accompanying drawings which illustrate the invention,4 like characters indicate like parts throughout the several views.

Referring to the bearing rollthe said roller of the curve that of the cooperating roller 3.

hearing,r plates 2. The radius 7 is preferably thesame as ot stop lugs or flanges 7, cast integral with` roller-bearing plates 2, onvopposite sides of are so designed that the rollers traveling the car have their fiat bearing ysurfaces l thereon will take care of the maximum latand in just the opposite arrangement; eral motion desired between the car trucks 60 that is, in both instances, nearly horizontal and the car body, but when the4 rollers, by. 5 surfaces et extend inward toward the center extreme movement, are run into contact with of the oar, while the relatively steep plate the curved'stop sui-faces 7, further travelbearing surfaces 5 extend outward from the ing or rolling movements thereof will be intermediate curve or cylindrical surface 6. intercepted. Suchv engagement of the roll- 65 The upper bearing plates 1 have the bearing ers with the said surfaces 7a also serves to surfacesll, 5 and (3 and also the stop lugs straighten up the rollers, that is, to force the or flanges 7 with curved stop surfaces 7,consame back into proper parallelism with each structed just as above described, except that other and with theeoperating bearing surthe said bearing surfaces 11 and 5 are in just faces, if, as sometimes happens, they should 70- the reverse'arrangement in respect to those have worked out of position. 4 15, of the underlying alates. 2. Otherwise That we claim is: stated, the nearly horizontal flat bearing 1. A lateral motion device for cars, conisurfaces 4C of the uppeil bearing plates 1 are prising upper and lower roller bearing extended outwardly, while the relatively platos and interposed rollers, said roller 75 steep or more inclined bearing surfaces are bearing plates having fiat diverging surfaces extended inwardly. and intermediate cylindrical bearing sur- Vlith the above described arrangement of faces tangentially joining said flat bearing rollers and roller-bea ing surfaces, when the surfaces, the said bearing plates, on-oppo.

car body, in traveling a curve, is thrown outward of the side toward the leftin resite sides of the car, being in duplicate, but 80 Ain such reverse arrangement as to' cause the speet tovFigs. 1 and 2, the following action will take place. The rollers at the left hand side of they car will be caused to run up the oar body to rise more on one side than on the other when moved laterally, and the relatively steep flat bearing surfaces 5 of the lower left hand bearing plate Q, and the flat bearing surfaces on the upper bearing plates being in reverse arrangement in re- 85 relatively steep flat bearing surfaces 5 of the i vupper left hand bearing plate 1 will be spect to those of the underlying roller bearing plates.

caused to runionto the left hand rollers 3.

y Q. A. lateral-motion device for oartrucks, comprising upper and lower roller-bearing This will, of course, cause the left hand side of the car to be raised considerably. Under plates and an interposed roller, said bearing 90 plates having flat diverging bearing sur- ,Y 435 the above movement, the rollers 3 at tht faces and an intermediate oylindricalbearright hand side of the car roll upon the ing surface tangentially joining said flat nearly horizontal [lat bearing surfaces #l of the lower right hand bearing plate 2, and

bearing surfaces, theradius of said cylinf the nearly horizontal flat bearing surfaces l of the upper right hand bearing plate 1 will being arranged in duplicate on opposite roll upon the right hand bearing rollers 3 sides of the car' and the flat inwardly exand thereby cause the 4right hand side of the tending bearing surfaces of the lowerbearear to be raised but very slightly. ing plates having a very slight inward rise, 10| T he turve of the intermediate roller bearwhile the outwardly extending "flat bearing ing surfaces (S of the upper and lower plates surfaces of said lower bearing plates have exceeds the curve of the vrollers, so slightly a relatively great outward rise, and the fiat that there is a very considerable tendency bearing surfaces of the upper bearing plates l to maintain the rollers centered in the bearbeing in a reverse arrangement in respect to 10 ing plates in intermediate positions without, those of the under -lying lower bearing however, producing any. loolr or solid resistplates. l

ance against the initial movements of the ln testimony whereof we aiiix our signarollers. YVhen the rollers move on the flat tures in presence of two witnesses. inclined bearing surfaces 5, the resistance LEE VV.,BARBER. to lateral movement of the car is constant, as EDWN W. VEBB. distinguished from an accelerated resistance Witnesses:

suoli as produced by true cylindrical sur- ROY ANDERSON, faces. The said bearing surfaces 4, 5 and 6 l .M /nini. G. LAW.

than the radius of said roller, the said parts drical bearing surface being slightly greater A 

